Ultra wideband butler matrix for beam-forming network

The need of having passive microwave devices that can operate in Ultra Wideband (UWB) frequency range has been arising these days due to their features that capable in bringing significant advances in wireless communications such as low power consumption, minimal interference and large channel capac...

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Main Author:	Abang Zaidel, Dyg. Norkhairunnisa
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/77928/1/DygNorkhairunnisaAbangPFKE2014.pdf
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id	my-utm-ep.77928
record_format	uketd_dc
spelling	my-utm-ep.779282018-07-23T06:00:19Z Ultra wideband butler matrix for beam-forming network 2014-06 Abang Zaidel, Dyg. Norkhairunnisa TK Electrical engineering. Electronics Nuclear engineering The need of having passive microwave devices that can operate in Ultra Wideband (UWB) frequency range has been arising these days due to their features that capable in bringing significant advances in wireless communications such as low power consumption, minimal interference and large channel capacity. However, the low power consumption has led to short range communication. Butler Matrix Beam Forming System is one of the solutions to solve such issue. Multilayer UWB couplers and multilayer UWB phase shifter are possible devices to develop a compact system design of Butler Matrix for UWB as the crossover function has been eliminated by this technique. New designs of multilayer UWB couplers and multilayer UWB phase shifters, which are used to construct the UWB Butler Matrix are introduced. These two main components are designed to function in the UWB frequency range to permit construction of the UWB Butler Matrix. In this research, the proposed UWB Butler Matrix achieves an improvement of 18.6% wider bandwidth compared to available UWB Butler Matrix and 31.1% size reduction compared to planar configurations of Butler Matrix. Simulation results are obtained by using Computer Simulation Technology Microwave Studio 2012. All measurements of S-parameters and phase differences performances are performed using a Vector Network Analyzer. Meanwhile, the measurements on beam directions of the UWB Butler Matrix are steered towards a particular direction by switching the input port accordingly. The switched beam antenna array system shows that four orthogonal beams are produced at four different directions. All measurements result show a very good agreement with the simulation results 2014-06 Thesis http://eprints.utm.my/id/eprint/77928/ http://eprints.utm.my/id/eprint/77928/1/DygNorkhairunnisaAbangPFKE2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:98303 phd doctoral Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Abang Zaidel, Dyg. Norkhairunnisa Ultra wideband butler matrix for beam-forming network
description	The need of having passive microwave devices that can operate in Ultra Wideband (UWB) frequency range has been arising these days due to their features that capable in bringing significant advances in wireless communications such as low power consumption, minimal interference and large channel capacity. However, the low power consumption has led to short range communication. Butler Matrix Beam Forming System is one of the solutions to solve such issue. Multilayer UWB couplers and multilayer UWB phase shifter are possible devices to develop a compact system design of Butler Matrix for UWB as the crossover function has been eliminated by this technique. New designs of multilayer UWB couplers and multilayer UWB phase shifters, which are used to construct the UWB Butler Matrix are introduced. These two main components are designed to function in the UWB frequency range to permit construction of the UWB Butler Matrix. In this research, the proposed UWB Butler Matrix achieves an improvement of 18.6% wider bandwidth compared to available UWB Butler Matrix and 31.1% size reduction compared to planar configurations of Butler Matrix. Simulation results are obtained by using Computer Simulation Technology Microwave Studio 2012. All measurements of S-parameters and phase differences performances are performed using a Vector Network Analyzer. Meanwhile, the measurements on beam directions of the UWB Butler Matrix are steered towards a particular direction by switching the input port accordingly. The switched beam antenna array system shows that four orthogonal beams are produced at four different directions. All measurements result show a very good agreement with the simulation results
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abang Zaidel, Dyg. Norkhairunnisa
author_facet	Abang Zaidel, Dyg. Norkhairunnisa
author_sort	Abang Zaidel, Dyg. Norkhairunnisa
title	Ultra wideband butler matrix for beam-forming network
title_short	Ultra wideband butler matrix for beam-forming network
title_full	Ultra wideband butler matrix for beam-forming network
title_fullStr	Ultra wideband butler matrix for beam-forming network
title_full_unstemmed	Ultra wideband butler matrix for beam-forming network
title_sort	ultra wideband butler matrix for beam-forming network
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/77928/1/DygNorkhairunnisaAbangPFKE2014.pdf
_version_	1747817865168289792

Ultra wideband butler matrix for beam-forming network

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